Stunning links

Five evidence-based ways to make yourself happier in the long run.

What's a "bond bubble," and why should we be worried about it?

Complicated mechanisms explained in simple animations. How does a sewing machine manage to knot stitches without releasing the thread? One quick look and you will know.

A moving documentary about Andrew Wiles and the quest to prove Fermat's Last Theorem.

Against banning election betting.

What would happen if businesses stopped maximizing profits and settled for "satisfactory profits" instead?

Who should exist?